So I am very satisfied and impressed by the suspension and handling of my rspec. As for the motor and performance I think it's sufficient but would really like to get some more out of it. I will be definately ordering hunter works clutch sheave In The very near future. My question is what other motor upgrades are there out there for the wolverine? I did see the power commander 5 is Available. Does anybody have one, how much of a difference is made? Any numbers from it? Does anyone offer a ecu flash for rspec? It seems like aftermarket jumps all over new polaris and other models, but things seem to be moving really slow in the aftermarket for wolverine. Any reviews on pipes or aircleaners? Like I said I really like my rspec, but would love bout 10 mph faster, and 8-10 more hp. Any help would be appreciated!